Manual Spice Bean Coffee Grinder Stainless Steel Burr Grinder with Ceramic Core Full body made from stainless steel high quality ceramic core grinding Stainless steel is easy cleaning to make stainless steel as bright as new Handy(manual) shaking design is durable, classical and saving time. Beans coarse / thin can be adjustable The oil seeds should be dry firstly and then grinder Material: Stainless steel